2023 Hyundai Santa Cruz

My coolant reservoir was so low that there was less than 8oz of coolant left in the tank. I contacted my local Hyundai dealership and had them service my Santa Cruz. The service techs at the dealership told me that there was a known issue with some of the factory coolant reservoir caps and the seal not working correctly, thus causing coolant to flow out through the cap instead of the overflow hose. They explained that the cap's o-ring at the factory is sometimes faulty. They replaced my cap and I am still monitoring for further issues. There is no TSB listed for this "known" issue. It seems that the dealership has not reported this issue.

Electric parking brake, driving at 70mph on freeway and Electric parking brake engaged. Almost lost control of vehicle and crashed. Stopped vehicle and turned ignition off let sit for 3 minutes and restarted. Problem cleared able to drive home with out issues. Called dealership to get vehicle in for service. Days later electric parking brake engaged again well driving at speed of 25mph. Again almost crashed. Dealership stated that problem with electric parking brake cables. Dealership replacing cables and rear brake calipers but going to take over a month to get replacement warranty parts from Hyundai

My 2023 Hyundai Santa Cruz, which I bought new, has gone into limp mode twice in 8 months, losing power while I was driving and letting me go no faster than 25 MPH. The first time, in April 2024, I was on [XXX] in Hartford CT. I called 911 because I was certain I would be hit by a car. There was no warning lights to indicate a problem. I was able to get off the highway and had it towed to Meriden Hyundai in Meriden CT. They said they could find nothing wrong. On [XXX], my vehicle went into limp mode again. I was able to drive it to the same dealer since I work nearby. Again, they say they can't find the cause. I have been without a vehicle since then. The car is a danger to drive, and Hyundai has not resolved the matter, though I've been in contact with corporate representatives. Limp mode has caused many crashed across the country. It is designed to protect a car from a mechanical problem - but the system itself puts drivers at great risk. My hope is the NTSB will investigate my case and this national problem before more people are injured or killed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This has happened twice in the last 3 months of owning this vehicle. Both times were luckily in uncrowded slow speed areas, and I had nothing in the bed. First time was in a parking lot (without my tonneau installed), the Most recent incident happened as I was reversing out of my driveway and as I Put my Vehicle in Drive slowly moving forward my Tailgate opened Unexpectedly (with a tonneau installed). My tail Gate Did not open fast, it was its standard controlled open.

Transmission failed to transfer adequate power to the wheels when the accelerator was pressed from a full stop at the entry point of an intersection. This led to the the vehicle slowly entering the intersection for 2 feet over w seconds. Transmission then transferred full power to wheels. Vehicle was then driven to the entrance of the nearest parking lot, which required a left turn. Vehicle again had only a partial transfer of power to the transmission, leaving the vehicle temporarily blocking part of the oncoming lane which could be dangerous if there was any oncoming traffic. A "check transmission oil" message flashed on the driver screen; however, this vehicle has a sealed transmission and it is impossible for a driver to check. Vehicle was then taken to the nearest dealership for evaluation.